Move course resources to the top of the index

Add learning resource for harness engineering course

Merge pull request #2 from rbren/add-openhands-blog-resources

Add OpenHands blog resources to README

Merge pull request #1 from zhimin-z/main

Merge pull request #3 from zhimin-z/copilot/report-errors-and-redirects

Fix broken and redirected links in README.md

Initial plan

Merge pull request #2 from zhimin-z/copilot/sort-benchmarks-alphabetically

Remove duplicate Terminal-Bench entry and sort benchmarks alphabetically

Initial plan

Update README.md

Merge pull request #1 from zhimin-z/copilot/update-agent-evaluation-system

Add 27 missing agent benchmarks to Benchmarks section

Initial plan